CN113581999B - Hoisting tool for connecting piece of continuous casting bloom and use method - Google Patents
Hoisting tool for connecting piece of continuous casting bloom and use method Download PDFInfo
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- CN113581999B CN113581999B CN202110864211.XA CN202110864211A CN113581999B CN 113581999 B CN113581999 B CN 113581999B CN 202110864211 A CN202110864211 A CN 202110864211A CN 113581999 B CN113581999 B CN 113581999B
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- 238000009749 continuous casting Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 238000009966 trimming Methods 0.000 claims description 14
- 238000005266 casting Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 9
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 239000000725 suspension Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 210000001015 abdomen Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/14—Plants for continuous casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Continuous Casting (AREA)
Abstract
A lifting appliance for a large billet connecting piece for continuous casting and a use method thereof belong to the technical field of continuous casting production technology. The device comprises a first holding part fixedly connected with a first rod, and the first rod is fixedly connected with a first supporting plate; the horizontal section of the second support plate is rectangular or square, a hole is formed in the center of the second support plate, and the first rod freely passes through the hole; the first positioning pin is used for limiting the second supporting plate; the second holding part is fixedly connected with the second supporting plate; the horizontal section of the first supporting plate is rectangular or square, and four corners of the first supporting plate are provided with first holes for the strip hooks to pass through; the strip hook is provided with four, strip hook upper end with second backup pad four corners fixed connection, strip hook lower extreme is hook-shaped for hoist and mount continuous casting bloom molten steel connecting piece. The device has simple structure and simple using method, and can realize stable hoisting of the molten steel connecting piece and accurate control of the depth of molten steel insertion.
Description
Technical Field
The application belongs to the technical field of continuous casting production technology, and particularly relates to a hoisting tool for a large billet connecting piece for continuous casting and a use method.
Background
In the metallurgical continuous casting production process, molten steel flows from a large ladle through a tundish, and is injected into a crystallizer from the tundish. In the continuous casting machine production process, in order to increase the yield and improve the productivity, a quick-change tundish operation is often performed. The quick-change tundish means that in the continuous casting pouring process, the working time of the tundish meets the requirements specified by technical regulations, or when other steel pouring conditions change, pouring of the tundish is interrupted in a short time, a new tundish is quickly replaced, and then the pouring is continued. In the process of quick-changing tundish, a continuous casting molten steel connecting piece is put into the crystallizer to connect new molten steel and old molten steel. The connectors used in the bloom quick change bag are cage connectors, which are bulky and heavy. Personnel hook the left and right sides or two opposite angles of the connecting piece respectively by two hooks, and the connecting piece is lifted by two hands horizontally, so that the connecting piece is stably and vertically inserted into molten steel of a crystallizer, the connecting piece is required to be placed right, the tundish is centered and descends without touching a water gap, and a water gap fracture accident is caused; the depth of the connecting piece inserted into the molten steel is ensured, so that the new molten steel and the old molten steel after casting are uniformly connected, and accidents caused by the fact that the connector is out of the crystallizer are avoided. However, two hooks are difficult to find two points for enabling the connecting piece to be horizontal, so that the connecting piece is obliquely inserted into molten steel of the crystallizer, moreover, uneven force fit of two hands is used for heavy connecting pieces, the connecting piece is obliquely inserted into the molten steel of the crystallizer, the ideal depth of the connecting piece inserted into the molten steel is not ensured, and huge risks are caused for casting.
The first technical scheme is as follows: an automatic unhooking device applied to a well pipe comprises at least three hook forks, wherein each hook fork is provided with a connecting end and a free end, the connecting ends of all the hook forks are fixedly connected, and all the hook forks are uniformly distributed annularly around the central axis of the unhooking device; the free end of each hook fork is provided with an angle hook, and the angle hook comprises a bearing plane and an unhooking inclined plane; the whole automatic unhooking device is in a vase shape with a small mouth and a small lower abdomen and a large bottom, the bottom of the unhooking device is smaller than the inner circle of the well pipe, the abdomen of the unhooking device is larger than the inner circle of the well pipe, and the total length of the unhooking device is larger than the length of the well pipe to be hoisted; after the hook fork penetrates into the well pipe, the angle hook bears the bottom of the well pipe, and hoisting is completed; when the well pipes are in butt joint, the lower well pipe compression angle hook enables the hook fork to be automatically separated from the upper well pipe, and in the whole hoisting process, hoisting workers do not need to operate a complex hoisting tool, so that the labor intensity of the workers is low, and the hoisting efficiency is high.
The second technical scheme is as follows: the spool lifting appliance comprises a lifting ring arranged at the top of the lifting appliance, two connecting rods hinged with the lifting ring, and two suspension arm assemblies which are arranged in two phases, wherein the two suspension arm assemblies are provided with opposite hinged ends; the hinged ends of the two suspension arm assemblies are hinged, and the upper ends of the two suspension arm assemblies are respectively connected with the two connecting rods, wherein the upper ends of the two suspension arm assemblies are driven to swing back and forth towards the central axis direction of the lifting appliance by the two connecting rods so as to enable the lower ends of the two suspension arm assemblies to realize opening and closing actions.
However, the prior art is not designed for use in the metallurgical continuous casting production process, has the problems that the structure is complex, the prior art cannot be applied to a crystallizer and the like, and the lifting balance of the molten steel connecting piece, the depth of inserting molten steel and the like cannot be realized.
According to the problems, the structure of the hoisting tool for the molten steel connecting piece needs to be improved, and the problems that the hoisting of the molten steel connecting piece is unbalanced, the depth of molten steel insertion is uncontrollable and the like are solved.
Disclosure of Invention
The embodiment of the application aims to provide a hoisting tool for a connecting piece of a casting bloom and a use method thereof, which have simple structure and simple use method, and can realize stable hoisting of the connecting piece of molten steel and accurate control of the depth of molten steel insertion.
The application is realized in the following way:
in a first aspect, an example of the present application provides a lifting appliance for placing a continuous casting bloom connector, comprising:
the first holding part is fixedly connected with the first rod, and the first rod is fixedly connected with the first supporting plate;
the horizontal section of the second support plate is rectangular or square, a hole is formed in the center of the second support plate, and the first rod freely passes through the hole;
the first positioning pin is used for limiting the second supporting plate;
the second holding part is fixedly connected with the second supporting plate;
the horizontal section of the first supporting plate is rectangular or square, and four corners of the first supporting plate are provided with first holes for the strip hooks to pass through;
the strip hook is provided with four, strip hook upper end with second backup pad four corners fixed connection, strip hook lower extreme is hook-shaped for hoist and mount continuous casting bloom molten steel connecting piece.
In some examples, the device further comprises a second rod, a first adjustable support assembly movably connected with the second rod, and the first adjustable support assembly is capable of being adjusted in a lifting mode.
In some examples, the second rod is externally provided with threads with scales, the first adjustable support assembly comprises a lifting sleeve, a first telescopic rod and a second fixed rod, threads are arranged in the lifting sleeve and are used for being matched with the threads on the second rod to achieve lifting of the lifting sleeve, the second fixed rod is fixedly connected with the lifting sleeve, and the first telescopic rod is in telescopic connection with the second fixed rod.
In some examples, the first telescoping rod is threadably engaged with the second fixed rod to achieve telescoping connection of the first telescoping rod relative to the second fixed rod.
In some examples, the bar hook further comprises a trimming portion, a lifting rod and a trimming cross assembly, wherein the trimming cross assembly is arranged below the first adjustable support assembly, and the trimming cross assembly is trimmed by the trimming portion and the lifting rod, so that the bar hook is trimmed.
In some examples, the fine adjustment part is located on the first holding part, the fine adjustment part is fixedly connected with the upper end of the lifting rod, a second hole is formed in the first holding part, the lifting rod freely passes through the second hole, threads are formed on the lifting rod, accommodating parts for accommodating the lifting rod are arranged in the first rod and the second rod, threaded parts matched with the threads on the lifting rod are formed in the inner walls of the accommodating parts of the first rod and/or the second rod, and lifting of the lifting rod is achieved through threaded matching of the lifting rod and the inner walls of the accommodating parts; the fine tuning cross assembly comprises a fine tuning rod and a strip hook guide hole, and the lower end of the lifting rod is fixedly connected with the fine tuning rod.
In some examples, a second locating pin is disposed between the first adjustable support assembly and the fine tuning cross assembly.
In a second aspect, an example of the present application provides a method for using a lifting appliance for placing a continuous casting bloom connecting piece, the lifting appliance comprising the steps of:
s1, holding the second holding part by one hand, stretching the first holding part by one hand, pushing the first holding part downwards, enabling the first rod and the first supporting plate to act downwards together, enabling the four bar hooks to be continuously close to the center, enabling the first supporting plate to be pushed downwards in place when the first positioning pin is in contact with the second supporting plate, enabling the four bar hooks to be close to the center in place, and enabling the four bar hooks to be vertically placed into the continuous casting bloom molten steel connecting piece;
s2, four strip hooks are aligned with four corners of the upper part of the continuous casting bloom molten steel connecting piece, the first holding part is pulled upwards, the first rod and the first supporting plate act upwards together, the four strip hooks are spread in opposite directions of the center, the four strip hooks hook the four corners of the upper part of the continuous casting bloom molten steel connecting piece, and then the lifting and placing of the continuous casting bloom molten steel connecting piece can be realized.
In some examples, the method further comprises the steps of:
s3, rotating the first adjustable support component to adjust the position to the position from the crystallizer opening to the scale corresponding to the height of the continuous casting bloom molten steel connecting piece, rotating the first telescopic rod to be away from the second fixed rod, enabling the length of the second fixed rod and the length of the first telescopic rod to be greater than the width of the crystallizer opening, and erecting the first adjustable support component on the crystallizer opening during use, so that the accurate positioning of the position of the continuous casting bloom molten steel connecting piece inserted into molten steel is realized.
In some examples, the method further comprises the steps of:
s4, after the hooks of the four strip hooks hook four corners of the upper part of the continuous casting bloom molten steel connecting piece, the fine adjustment part is rotated to achieve lifting of the lifting rod, so that the distance between the fine adjustment rod of the fine adjustment cross assembly and the guide hole of the strip hook is adjusted, and tightness of the four hooks of the strip hooks hook the four corners of the upper part of the continuous casting bloom molten steel connecting piece is adjusted.
The beneficial effects of the application include:
the strip hook is folded and unfolded through the structural cooperation of the first holding part, the second holding part, the first rod, the first supporting plate, the second supporting plate and the like, so that the hanger smoothly enters the continuous casting bloom connecting piece and hooks the connecting piece, the device is simple in arrangement, easy to operate, stable in placing the connecting piece and easy to unhook and retract. Further, through the first adjustable supporting component capable of being adjusted in a lifting mode and in a telescopic mode, accurate positioning of the continuous casting bloom connecting piece can be achieved. Furthermore, through the use of devices such as the fine tuning part, the lifting rod, the fine tuning cross assembly and the like, the connection between the strip hook and the connecting piece is tighter, and the reliability of the device is further improved. The application effectively avoids the connection piece from being obliquely inserted into the molten steel of the crystallizer, ensures the ideal depth of the connection piece inserted into the molten steel, improves the success rate of quick-change tundish, and has the advantages of simple manufacture, convenient single operation, safety, stability, reliability and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a lifting appliance;
FIG. 2 is a side view of the lifting appliance;
FIG. 3 is a top view of the lifting appliance;
FIG. 4 is a schematic cross-sectional view of a lifting appliance;
fig. 5 is a schematic view of the use state of the hoisting tool.
Icon: 1-a strip hook; 2-a first support plate; 3-a second support plate; 4-a first lever; 5-a first holding part; 6-a fine adjustment part; 7-a first positioning pin; 8-a first adjustable support assembly; 9-fine tuning a cross assembly; 10-a second rod; 11-a second locating pin; 12-molten steel connecting piece; 13-a crystallizer; 14-a second holding part; 61-lifting rod; 62-thread; 81-lifting sleeve; 82-a first telescopic rod; 83-a second fixing rod; 91-fine tuning bar; 92-strip hook guide holes.
Detailed Description
The application provides a lifting appliance for placing a continuous casting bloom connecting piece based on the requirement of lifting the connecting piece, which is used for realizing stable lifting and accurate positioning of the connecting piece.
In order to facilitate understanding of the working principle and the use mode of the lifting appliance for the bloom connecting piece of casting, the structure of the lifting appliance for the bloom connecting piece of casting is given below, and the description of the lifting method of the lifting appliance for the bloom connecting piece of casting in the application is based on the expansion of the structure.
The structure of the hoisting tool for the connecting piece of the casting bloom is shown in figures 1-5.
The example of the present application provides a hoisting tool for a connecting piece of a strand casting bloom, comprising:
the first holding part 5 is fixedly connected with the first rod 4, the fixed connection mode can be determined according to specific requirements, and the fixed connection mode can be a feasible fixed connection mode such as welding or clamping fixation. The specific shape of the first holding portion 5 is not particularly limited and is set according to the actual need of gripping. The first rod 4 may have different implementations depending on the specific use requirements. For example, the first rod 4 is in a rod-shaped structure or other realization, and the cross section of the rod body of the first rod 4 may be circular, rectangular, elliptical or the like, preferably circular, and the first rod 4 is exemplified by 1 steel pipe with a diameter of 1cm and a length of 25 cm.
The first rod 4 is fixedly connected with the first supporting plate 2; the fixed connection mode can be determined according to specific requirements, and the fixed mode can be a feasible fixed connection mode such as welding or clamping fixation. The first support plate 2 has a rectangular or square horizontal section, and is exemplified by a square steel plate having a length of 16cm and a thickness of 7 mm; the four corners of the first supporting plate 2 are provided with first holes for the strip hooks 1 to pass through, and the first holes can be formed in the middle of nuts welded at the four corners.
A second support plate 3, the second support plate 3 being rectangular or square in horizontal section, illustratively a square steel plate 8cm in length and 7mm in thickness; the center is provided with a hole, the hole is round, the diameter is 1.1cm, and the first rod 4 freely passes through the hole;
the first positioning pin 7 is used for limiting the second supporting plate 3; the locating pin may be implemented in different ways depending on the particular application. For example, the first positioning pin 7 is a block-shaped blocking structure or a fixed positioning structure such as a buckle, or other implementation forms.
A second holding portion 14 fixedly connected to the second support plate 3; the fixing connection mode can be determined according to specific needs, the fixing mode can be a feasible fixing connection mode such as welding or clamping fixing, the specific shape of the second holding portion 14 is not limited, and the fixing mode is set according to actual needs of grasping.
The strip hook 1 is provided with four strips, the upper end of the strip hook 1 is fixedly connected with four corners of the second supporting plate 3, the fixed connection mode can be determined according to specific requirements, and the fixed connection mode can be a feasible fixed connection mode such as welding or clamping fixation; the lower end of the strip hook 1 is in a hook shape and is used for hoisting a continuous casting bloom molten steel connecting piece 12. The bar hook is exemplified by a hooked steel bar of diameter 7mm and length 30cm.
The strip hook is retracted and released through the structural cooperation of the first holding part 5, the second holding part 14, the first rod 4, the first supporting plate 2, the second supporting plate 3 and the like, so that the hanger smoothly enters the continuous casting bloom connecting piece and hooks the connecting piece, the device is simple in arrangement, easy to operate, stable in releasing the connecting piece and easy to unhook and retract.
In some embodiments, the device further comprises a second rod 10, and a first adjustable support assembly 8 movably connected with the second rod 10, wherein the first adjustable support assembly 8 can be adjusted in a lifting manner.
The second rod 10 is externally provided with graduated threads, and the second rod 10 may be implemented in different ways depending on the particular use requirements. For example, the second rod 10 is in a rod-shaped structure or other realization forms, the rod body section of the first rod 4 can be in a shape of a circle, an ellipse or the like, preferably a circle, and the second rod 10 is an externally threaded steel pipe with a scale of 15 cm; the second rod 10 is fixedly connected with the first support plate 2, the fixed connection mode can be determined according to specific requirements, and the fixed connection mode can be a feasible fixed connection mode such as welding or clamping fixation.
The first adjustable support assembly 8 comprises a lifting sleeve 81, a first telescopic rod 82 and a second fixed rod 83, wherein threads are arranged in the lifting sleeve 81 and are used for being matched with the threads on the second rod 10 to realize lifting of the lifting sleeve 81; the second fixing rod 83 is fixedly connected with the lifting sleeve 81, the fixing connection mode can be determined according to specific requirements, the fixing mode can be a feasible fixing connection mode such as welding or clamping fixing, and according to specific use requirements, the second fixing rod 83 can have different implementation modes. For example, the second fixing rod 83 is in a rod-shaped structure or other implementation forms, and the rod section of the second fixing rod 83 may be circular, elliptical, or the like.
The first telescopic rod 82 is telescopically coupled with respect to the second fixed rod 83. The telescopic connection of the first telescopic link 82 with respect to the second fixed link 83 may be implemented in different ways depending on the specific requirements. For example, the first telescopic rod 82 and the second fixed rod 83 are connected in a telescopic manner through threaded rotation, the first telescopic rod 82 and the second fixed rod 83 are connected in a telescopic manner through a detachable bolt, or other implementation forms. For example, the first telescopic rod 82 and the second fixed rod 83 are in threaded fit to achieve telescopic connection of the first telescopic rod 82 relative to the second fixed rod 83, a threaded hole may be provided for the second fixed rod 83, the first telescopic rod 82 is provided with an external thread, and the external thread is inserted into the threaded hole to achieve telescopic connection through rotation. The rod body section of the first telescopic rod 82 is circular.
The precise positioning of the continuous casting bloom molten steel connecting piece 12 can be realized through the first adjustable supporting component 8 which can be adjusted in a lifting way and in a telescopic way.
In some specific embodiments, the fine adjustment part 6, the lifting rod 61 and the fine adjustment cross assembly 9 are further included, the fine adjustment cross assembly 9 is arranged below the first adjustable support assembly 8, and the fine adjustment cross assembly 9 is finely adjusted through the fine adjustment part 6 and the lifting rod 61, so that the bar hook 1 is finely adjusted.
The fine tuning part 6 is located above the first holding part 5, the fine tuning part 6 is fixedly connected with the upper end of the lifting rod 61, the fixed connection mode can be determined according to specific requirements, and the fixed connection mode can be a feasible fixed connection mode such as welding or clamping fixation. The first holding part 5 is provided with a second hole through which the lifting rod 61 freely passes, and the lifting rod 61 is provided with threads, and the lifting rod 61 can be implemented in different ways according to specific use requirements. For example, the lifter 61 may have a bar-like structure or other implementation, and the cross section of the lifter 61 may have a circular shape. The first rod 4 and the second rod 10 are internally provided with a containing part for containing the lifting rod 61, the inner wall of the containing part of the first rod 4 and/or the second rod 10 is provided with a threaded part in threaded fit with the lifting rod 61, lifting of the lifting rod 61 is realized through threaded fit of the lifting rod 61 and the inner wall of the containing part, and in addition, the first supporting plate 2 is provided with a hole through which the lifting rod 61 freely passes.
The fine tuning cross assembly 9 comprises a fine tuning rod 91 and a bar hook guide hole 92, and the lower end of the lifting rod 61 is fixedly connected with the fine tuning rod 91. The trimming lever 91 may be implemented differently depending on the particular application. For example, the fine adjustment lever 91 may have a rod-like structure, a plate-like structure, a spring structure, or other implementation forms, and the cross section of the lever body of the fine adjustment lever 91 may have a circular shape, an elliptical shape, or the like. The fixed connection mode can be determined according to specific requirements, and the fixed mode can be a feasible fixed connection mode such as welding or clamping fixation. The bar hook guide 92 may be obtained by welding a nut at the end of the fine adjustment lever 91. When assembled, the steel bars of the bar hook 1 can pass through the bar hook guide holes 92 and the holes on the first support plate 2 in sequence and then are welded and connected with the second support plate 3.
By using the trimming part 6, the lifting rod 61, the trimming cross assembly 9 and other devices, the connection between the strip hook and the connecting piece is tighter, and the reliability of the device is further improved.
In some examples, a second positioning pin 11 is disposed between the first adjustable support assembly 8 and the fine tuning cross assembly 9, for separating the first adjustable support assembly 8 from the fine tuning cross assembly 9 when the first adjustable support assembly 8 and the fine tuning cross assembly 9 are disposed simultaneously.
The following provides a specific use method for a lifting appliance for a connecting piece of a casting bloom when the first adjustable supporting component 8 and the fine tuning cross component 9 are arranged at the same time, and the method comprises the following steps:
s1, holding a second holding part 14 by one hand, stretching a first holding part 5 by one hand, pushing the first holding part 5 downwards, enabling a first rod 4, a first supporting plate 2, a second rod, a fine tuning cross assembly 9 and the like to act downwards together, enabling four bar hooks 1 to be continuously closed towards the center, enabling the first supporting plate 2 to push downwards in place when a first positioning pin 7 contacts with the second supporting plate 3, enabling the four bar hooks 1 to be closed towards the center in place, and enabling the four bar hooks 1 to be vertically placed into a continuous casting bloom molten steel connecting piece 12;
s2, the four bar hooks 1 are aligned with four corners of the upper part of the continuous casting bloom connecting piece 12, the first holding part 5 is pulled upwards, the first rod 4, the first supporting plate 2, the second rod, the fine tuning cross assembly 9 and the like act upwards together, the four bar hooks 1 are spread towards the opposite directions of the center, and the hooks of the four bar hooks 1 hook the four corners of the upper part of the continuous casting bloom connecting piece 12;
s3, rotating the first adjustable support component 8 to adjust the position to the scale corresponding to the height from the crystallizer opening to the continuous casting bloom molten steel connecting piece 12, rotating the first telescopic rod 82 away from the second fixed rod 81 to enable the lengths of the second fixed rod 81 and the first telescopic rod 82 to be larger than the width of the crystallizer opening, and erecting the first adjustable support component 8 above the crystallizer opening when in use, so that the accurate positioning of the position of the continuous casting bloom molten steel connecting piece 12 inserted into molten steel can be realized;
illustratively, the total height of the continuous casting bloom connecting piece is 35cm less than the set height of the continuous casting bloom connecting piece inserted into molten steel by 20cm to obtain that the continuous casting bloom connecting piece is 15cm higher than the molten steel, the crystallizer opening is 44cm higher than the molten steel by less than the continuous casting bloom connecting piece is 15cm higher than the molten steel to obtain that the crystallizer opening is 29cm higher than the continuous casting bloom connecting piece;
the scale indication arranged outside the second rod 10 is the height of the first adjustable supporting component 8 from the contact position of the hooks of the four bar hooks 1 and the continuous casting bloom steel connecting piece 12, and the height indication is 29cm from the crystallizer opening to the continuous casting bloom steel connecting piece 12 immediately after the first adjustable supporting component 8 is supported at the crystallizer opening; therefore, the position of the first adjustable support component 8 is adjusted to the scale corresponding to the height from the crystallizer opening to the continuous casting bloom molten steel connecting piece 12, the first telescopic rod 82 is rotated to be far away from the second fixed rod 83, the length 16cm of the second fixed rod 83 and the length 16cm of the first telescopic rod 82 are larger than the half width of the crystallizer opening (the section of the crystallizer is 30cm x 30 cm), the first adjustable support component 8 is erected on the crystallizer opening, and the accurate positioning of the position of the continuous casting bloom connecting piece inserted into molten steel is realized.
S4, after hooks of the four strip hooks 1 hook four corners of the upper part of the continuous casting bloom molten steel connecting piece 12, the fine adjustment part 6 is rotated to achieve lifting of the lifting rod 61, so that the distance between the fine adjustment rod 91 of the fine adjustment cross assembly 8 and the strip hook guide hole 92 is adjusted, and the tightness of the hooks of the four strip hooks 1 hook four corners of the upper part of the continuous casting bloom molten steel connecting piece 12 is further adjusted. Illustratively, when the fine adjustment lever 91 is in the inclined position of fig. 4, the fine adjustment lever 61 moves downward in S1 by rotating the fine adjustment section 6, and the fine adjustment lever 91 moves continuously in S2 corresponding to the horizontal bar guide hole 92 in the horizontal direction in the process of changing from the inclined position of fig. 4 to the horizontal position, thereby adjusting the bar hook 1.
Through the use of the hoisting tool for the connecting piece of the casting bloom, the connecting piece is effectively prevented from being obliquely inserted into molten steel of a crystallizer, the ideal depth of the connecting piece inserted into the molten steel is ensured, the success rate of quick-change tundish is improved, and the hoisting tool has the advantages of being simple in manufacture, convenient for single operator, safe, stable, reliable and the like.
In order to make the purposes, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application are clearly and completely described above in conjunction with the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are some, but not all, embodiments of the application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Accordingly, the above detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the product of the application, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In the present application, all the embodiments, implementations and features of the application may be combined with each other without contradiction or conflict. In the present application, conventional equipment, devices, components, etc., are either commercially available or homemade in accordance with the present disclosure. In the present application, some conventional operations and apparatuses, devices, components are omitted or only briefly described in order to highlight the gist of the present application.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (7)
1. The utility model provides a hoist tool for casting bloom connecting piece, its characterized in that includes:
the first holding part is fixedly connected with the first rod, and the first rod is fixedly connected with the first supporting plate;
the horizontal section of the second support plate is rectangular or square, a hole is formed in the center of the second support plate, and the first rod freely passes through the hole;
the first positioning pin is used for limiting the second supporting plate;
the second holding part is fixedly connected with the second supporting plate;
the horizontal section of the first supporting plate is rectangular or square, and four corners of the first supporting plate are provided with first holes for the strip hooks to pass through;
the strip hooks are provided with four strips, the upper ends of the strip hooks are fixedly connected with four corners of the second supporting plate, and the lower ends of the strip hooks are hooked and are used for hoisting continuous casting bloom molten steel connectors;
the first adjustable support assembly is movably connected with the second rod and can be adjusted in a lifting manner;
the second rod is externally provided with threads with scales, the first adjustable support assembly comprises a lifting sleeve, a first telescopic rod and a second fixed rod, threads are arranged in the lifting sleeve and are used for being matched with the threads on the second rod to realize lifting of the lifting sleeve, the second fixed rod is fixedly connected with the lifting sleeve, and the first telescopic rod is in telescopic connection with the second fixed rod relatively;
the first telescopic rod is in threaded fit with the second fixed rod to realize telescopic connection of the first telescopic rod relative to the second fixed rod.
2. The lifting appliance of claim 1, further comprising a trimming section, a lifting bar and a trimming cross assembly, the trimming cross assembly being disposed below the first adjustable support assembly, the trimming cross assembly being trimmed by the trimming section, the lifting bar, and thereby trimming the bar hook.
3. The hoisting tool according to claim 2, wherein the fine tuning part is located on the first holding part, the fine tuning part is fixedly connected with the upper end of the lifting rod, a second hole is formed in the first holding part, the lifting rod freely penetrates through the second hole, threads are formed in the lifting rod, accommodating parts for accommodating the lifting rod are arranged in the first rod and the second rod, threaded parts matched with the threads on the lifting rod are formed in the inner walls of the accommodating parts of the first rod and/or the second rod, and lifting of the lifting rod is achieved through threaded matching of the lifting rod and the inner walls of the accommodating parts; the fine tuning cross assembly comprises a fine tuning rod and a strip hook guide hole, and the lower end of the lifting rod is fixedly connected with the fine tuning rod.
4. A lifting appliance according to claim 3, wherein a second locating pin is provided between the first adjustable support assembly and the fine tuning cross assembly.
5. A method of using the lifting appliance for connecting a strand casting bloom, which is characterized by comprising the following steps:
s1, holding the second holding part by one hand, stretching the first holding part by one hand, pushing the first holding part downwards, enabling the first rod and the first supporting plate to act downwards together, enabling the four bar hooks to be continuously close to the center, enabling the first supporting plate to be pushed downwards in place when the first positioning pin is in contact with the second supporting plate, enabling the four bar hooks to be close to the center in place, and enabling the four bar hooks to be vertically placed into the continuous casting bloom molten steel connecting piece;
s2, four strip hooks are aligned with four corners on the upper portion of the continuous casting bloom connecting piece, the first holding portion is pulled upwards, the first rod and the first supporting plate act upwards together, the four strip hooks are spread in opposite directions of the center, the four strip hooks hook the four corners on the upper portion of the continuous casting bloom connecting piece, and then lifting and placing of the continuous casting bloom connecting piece can be achieved.
6. The method of using a lifting appliance as recited in claim 5, further comprising the steps of:
s3, rotating the first adjustable support component to adjust the position to the position from the crystallizer opening to the scale corresponding to the height of the continuous casting bloom molten steel connecting piece, rotating the first telescopic rod to be away from the second fixed rod, enabling the length of the second fixed rod and the length of the first telescopic rod to be greater than the width of the crystallizer opening, and erecting the first adjustable support component on the crystallizer opening during use, so that the accurate positioning of the position of the continuous casting bloom molten steel connecting piece inserted into molten steel is realized.
7. The method of using a lifting appliance as recited in claim 5, further comprising the steps of:
s4, after the hooks of the four strip hooks hook four corners of the upper part of the continuous casting bloom molten steel connecting piece, the fine adjustment part is rotated to achieve lifting of the lifting rod, so that the distance between the fine adjustment rod of the fine adjustment cross assembly and the guide hole of the strip hook is adjusted, and tightness of the four hooks of the strip hooks hook the four corners of the upper part of the continuous casting bloom molten steel connecting piece is adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110864211.XA CN113581999B (en) | 2021-07-29 | 2021-07-29 | Hoisting tool for connecting piece of continuous casting bloom and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110864211.XA CN113581999B (en) | 2021-07-29 | 2021-07-29 | Hoisting tool for connecting piece of continuous casting bloom and use method |
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| Publication Number | Publication Date |
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| CN113581999A CN113581999A (en) | 2021-11-02 |
| CN113581999B true CN113581999B (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110864211.XA Active CN113581999B (en) | 2021-07-29 | 2021-07-29 | Hoisting tool for connecting piece of continuous casting bloom and use method |
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| CN213738200U (en) * | 2020-11-12 | 2021-07-20 | 中建海峡建设发展有限公司 | Lifting tool for cement pipe of dewatering well |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191518008A (en) * | 1915-02-09 | 1916-05-16 | Alfred Hairon | Improvements in or relating to Automatic Grabs. |
| CN207792478U (en) * | 2017-12-06 | 2018-08-31 | 中建海峡建设发展有限公司 | A kind of lifting utensil of aluminium section bar storage rack |
| CN108584683A (en) * | 2018-05-16 | 2018-09-28 | 湖南理工学院 | A kind of steel plate automatic hitch device |
| CN208631931U (en) * | 2018-08-09 | 2019-03-22 | 法兰泰克重工股份有限公司 | A kind of Multifunctional hoisting device carried for cement pipe pile production |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113581999A (en) | 2021-11-02 |
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